I've got an early 2009 Mac Mini, and about during Christmas I got 6 GBs of DDR3 RAM from OWC to upgrade it with. It was okay for about a month, then it started giving me the gray screen of death just while I was using the Mini (not during startup, or shutdown). If I try to restart it immediately, it either gives me three beeps continuously or it plays the startup noise over and over. While using Windows during bootcamp it gives me the blue screen. I need to wait about ten minutes or so before I can turn it on again. I keep using the Mini thinking its a one-time thing, but then it keeps happening, even more frequently. I thought, well, my Mac CAN support up to 8 GBs, so maybe the RAM is just defective. I send it back to OWC and get the new memory back. I install that memory, and then after a month, sure enough it gives me the gray screen. I then think that maybe the RAM are in the wrong banks, so I switch the 2 GB's and 4 GB's places. And now it's fine for a couple weeks, then just today it gave me the gray screen. What's the problem here? Can my computer not handle 6 GBs? Is there a solution?